Coaster-brake.



V. W. PAGE. CDASTER BRAKE. APPLlcAxoN mib ocT. |912.

Patented Jan.16,1917.

2 SHEETS-SHEET l.

m mml INVENTORI 15mm WITN ESSES.'

V. W. PAGE.

COASTER BRAKE. APPLICATION FILED ocT. s. 1'912.

Patented Jan. 16, 1917.

2 SHEETS-SHEET 2.

INVENTOR: llemw) BY f a' ATTORNEY, V

vIcTon w. IAGE, or IsnIsToL, coNNEcTIcUT,

MANUFACTURING conrANY, or HARTFORD,

CONNECTICUT.

COASTEB--BBAKE AssIGNon To THE NEW DEPARTURE CONNECTICUT, A conronATIoNor siiecifwation of Letters raient.

Patented Jan. 1c, 1917.

Application led October 8, 1912. Serial No. 724,532.

To all whom. it may concern:

Be it `known that I, Vro'mn W. PAGE, a citizen of the United States,residing at Bristol, county of Hartford, State of Connecticut, haveinvented a certain new and useful Coaster-Brake, of which the followingis ,a full, clear, and exact description, such as will enableothersskilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, forming part ofthis specification.

My invention relates to coaster brakes and more particularly to brakingmechanisms adapted to be used in such structures.

One object of the present invention is to provide a structure havingsimple and eilicient means for applying the braking force to the brake.

Another object is to provide a device in which the brake and thebrake-actuating means are at .opposite sides, axially, of a. bearing forthe hub shell and yet such bearing is of a character to efficientlysupport the loads to which it is subjected.

Another object is to provide a device havin an eiiicient and simplestructure for carrying upon the axle the means connecting the brake andthe brake-actuating means.

To these ends and alsoto vimprove generally upon devices of thecharacter indicated, my invention consists in the various mattershereinafter described and claimed.

In the accompanying drawings: Figure 1 is a longitudinal diametricalsection of a coaster brake embodying my invention. Fig. 2 is a sectionsubstantially on line 2-2 of Fig. 1, but with the balls removed; andFig. 3 is a section on line 3-3 of Fig. 1.

Although in no wise limited to such application, I herein disclose myinvention as applied to the general type of coasting and braking hubhaving a laterally shiftable connector sleeve and disclosed in PatentNo. 745.524, granted December 1, 1903, to Albert F. Rockwell.

Referring more particularly to the present drawings and to said patent,2 indicates the axle of the rear wheel which commonly embodies thecoaster brake, said axle being adapted to be secured to the frame of abicycle or the like, 3 is the hub of such rear Wheel, said hub havingthe usual spoke flanges 4 and 5, 6 is the threaded driver sleeverotatably mounted on said axle and carrying the usual sprocket wheel 7,all, as thus far described, substantially as disclosed in said patent toRockwell.

A connector, shown as a laterally shiftable sleeve 8, provided withinterior threads which coact with the threads upon said driver sleeve,is provided. Such connector, when moved in one direction acts to driveand, when shifted in the other direction actuates the brake.

Suitable means for retarding the rotation of the connector 8 may beprovided, such means being shown as the friction spring 9 sprung aboutthe axle 2 and engaging the inner surface of the connector. In additionto the means for holding the axle in the frame of the bicycle, such asthe u'sual nuts, provision is made for holding the axle from rotation,such, for example, as the torque or anchor arm 10 fitted over thesquared end of the axle, as indicated at 11, and attached to thebicycle.

Suitable braking means are provided, there being shown an interior brake12 of the friction-disk type The brake is shown as housed within the endof the hub 3, such end being designated generally as 13, and thereforeeasily accessible for assembling, adjustment, etc. Certain of the disks,as 14, are slidably but nonrotatably attached to the axle 2, as bysquaring the axle, and the intermediate disks, as 15, are shown as.slidably and nonrotatably attached to the hub 3 by keying at 16. Thesebrake disks are illustrated as housed and protected by the cylindricalhousing 17 forming a part of the hubend designated generally as 13, suchhousing being here shown as a mere extension of the hub.v Removableprotecting means for the brake and closing means for the hub arepreferably provided, such means being shown as a disk 18 removablyattached, as by the threads 19, to the hub and rotatable about thecircular flange 20 on the axle. Suitable packing, as 21, to retain oilwithin the housing may be provided if desired, such oil beingconveniently supplied by Way of the oil-cap 35.

The structure just described provides a brake whose members are fullyprotected when assembled, and such structure permits the brake parts tobe readily and inexpensively assembled, and through the simple removalof the end plate 18, also renders them easy of access, as for repair,without disturbing. the interior mechanism or adjustment of theremainder of the hub.

Assuming that the laterally shiftable connector 8 is so related to thebrake that lateral shifting of the connector to the left (in Fig. l)nauses the brake to be actuated, it will be apparent that, when thesprocket wheel 7 is driven forwardly by ordinary forward' pedaling, itrotates said driver sleeve forwardly andA thus causes said connector totravel to the right on the threads of the driver sleeve) until itsclutch face 22 engages the corresponding clutch face 23 of the hub,whereupon continued forward rotation of the sprocket, the sleeve and theconnector, causes the hub 3 to rotate and the bicycle to be propelled;when the rider holds his feet stationary on the pedals, and thus holdsthe driver sleeve 6 stationary, the rotating hub causes the connector 8to move to the left (on the threads of the driver sleeve) until thebefore mentioned clutching engagement is broken, whereupon the hub 3 isfree to coast; and when the driver sleeve is rocked backwardly, as bybackward rocking of the pedals, said connector 8 is shifted to the leftuntil, by the connection to the brake, hereinafter described, the brakeis actuated, and further backward rocking increases the force applied tothe brake. I

In the herein illustrated embOdlmQIl 0f my invention a suitable and`preferable con` nection is provided for transmitting the braking forcefrom the connector to the brake. Mounted upon the axle 2 and fasttherewith, as by the key 24, and preferably strongly held thereonagainst longitudinal shifting, as by a shoulder portion 25 of the axle,is a supporting and guiding means shown as a collar 26. This collar 26is spaced longitudinally of the axle from both the brake 12 and theconnector 8, as clearly indicated in Fig. 1, and is "conveniently formedwith a ball race 27 for balls B on which rests the hub 3.

The collar 26 carries connecting means projecting from each end thereofand shown as pins 28, preferably three in number, which may, as shown inFig. 2, be arranged at angles of 120O with respect to each other andequally spaced from the center of the collar 26. These pins traverse thecollar 26 substantially in the direction of its length and are slidablethrough, and with respect to, the said collar.

Carried upon, and supported by, the pins 28 at their ends toward theconnector l8 may be provided a contact means, shown as a ring or annulus29. Such annulus is preferably normally positioned inv close proximityto the end of the connector 8 and spaced therefrom, but is capable ofbeing engaged by the connector 8 when the same travels sufficiently tothe left. The coperating surfaces of the annulus and connector may besuitably roughened, as lby corrugating, as indicated at 30, 31.

For positively, but yieldingly, forcing the pins 28 away from the brake,and the annulus 29 toward the connector, suitable means may be providedsuch for example as the springs 32, preferably three in' number, spacedat 120, lying intermediate and equally spaced from pins 28, and spacedfrom the center of the collar 26 as are the pins 28. These springs areshown as resting in recesses 33 in the collar 26 and as pressing againstthe ring 29.

In connection with the annulus 29, preferably by being connected withthe pins 28 at their ends opposite to those attached to the annulus, maybe provided a means for applying the braking force directly to the brake12. Such means is shown as a disk 34 non-rotatably and slidablymo-untedupon the axle, as by squaring the axle, and having an engaging surfaceapproximately co-extensive with that of the friction disk of the brakewhich it is adapted to engage. Evidently the parts designated as 29, 28and 34 may be considered as constituting a laterally shiftableconne-cting means between the connector 8 and the brake 12 and servingto transmit the braking force from one side of the bearing to the other.

Normally the disk 311 is out of braking engagement With the frictiondisk with which it coperates by direct engagement. It will be seen thatsince the contact areas of the disk 34, and its coperating frictiondisk, and the areas of all the respective friction disks areapproximately co-extensive, the braking force isapplied to each diskover substantially its entire area.

It will also be seen that, when the brake is applied, the reactionthrust is transmitted through plate 18 and taken up by the stronglybraced abutment 26 and by the large bearing B.

In operation, movement of the connector 8 to the left brings it intocontact with the annulus 29, the corrugations 30, 3l, serving to makethis contact positive and to insure against undesirable angular movementof said connector; continued lateral movement of the connector 8 forcesthe ring or annulus 29 and pins 28 and disk 34 to the left, against thetension of springs 32, and forces the brake disks into contact with eachother and the outermost disk into contact with the part 18 carried bythe hub, the reaction thrust being taken up by the strong abutment 26,as above described; and, upon discontinuance of the braking force by theconnector 8, the parts 34, 28 and 29 are positively forced to the rightby the springs 32 and the braking action is relieved.

It will be noted that the collar 26 is of such width and character thatit presents a substantially solid lnass of material throughout itscircumferential length and along the radial-component-load lines, as :vFig. 1., of the bearing between the face directly supporting the load ofthe hub shell and the portions resting on the axle. The result is that,in a device of the present character and in which the. bearing at thebrake end is stationary on the axle and the braking force is transferredfrom one side of the bearing to the other, the hub shell is strongly andrigidly supported under the radial components of the loads transmittedto it from the spokes. It will also be noted that a single means-thecollar 2li-supports the hub shell, the springs 32, and the pins 28 withtheir connected annulus 29. This arrangement is conducive to simplicityof structure and ease of assembly.

Having thus described my invention, what I claim as new and desire tosecure by `Letters Patent is- Hstantially as described. f

"2. In' a cycle hub provided with a brake,

u anfa-xle, a bearing carried by said axle and 'stationary thereon, aspoke-carrying-Wheelhub shell directly carried by-said bearing forrotation'about said axle; said shell being adapted to sustain the loadstransmitted by said spokes, and certain of said bearings load lines,radial to the axle and extending thereto from portions of said bearingimmediately sustaining said loads, being coincident with certain of thebearing points of said bearing upon said axle, and the bearing providingsupporting material continuous along such lines; a'braking means forsaid shell upon the one side of said bearing, a brake operating meansupon the other side of said bearing, at least one of said means beingreceived Within said shell, and means for operatively connecting saidoperating means and said braking means, such connecting means extendingfrom one side of said bearing to the other; substantially as described.

3. In a coaster brake, an axle, a bearing carried by said axle andstationary thereon, a spoke-carrying-wheel-hub-shell directly carried bysaid bearing for rotation about said axle; said shell being adapted tosustain the loads transmitted by said spokes, and certain of saidbearings load lines, radial to the axle and'extending thereto fromportions of said bearing immediately sustaining said loads, beingcoincident with eertain of the bearing points of said bearing upon saidaxle, and the bearing providing supporting material continuous alongsuch lines; a braking means for said shell upon the one side of saidbearing, a brake operating means upon the other side of said bearing,means for operativelyconnecting said operating means and said brakinmeans, such connecting means extending rom one side of the bearing tothe other, a driver for said shell carried by said axle for rotationindependently of said shell, and means whereby when said driver rotatesin the one direction it drives the shell, when said shell overruns thedriver said shell is free to coast and when said driver rotates in theother direction it operates the brake operating means to thereby applythe braking means to said shell; substantially as described.

4. In a cycle hub, an axle, a bearing carried by said axle, aspoke-carrying hub shell carried by said bearing for rotation'about saidaxle, said bearing providing supporting material along certain of theradial load lines of said bearing and extending from the parts of thebearing directly supporting the load of said shell to parts of thebearing adjacent the axle, a brake for said shell at the one side of thebearing, an actuating means for said brake at the other side of thebearing, and means for connecting said actuating means and said brakeand comprising a pin slidably carried in the said material of thebearing and operatively connected at its opposite ends with saidactuating means and said brake; substantially as described` In a cyclehub, an axle, a bearing comprising a substantially solid portion carriedby said axle, a spoke-carrying hub shell carried by said bearing forrotation about said axle, said bearing portion extending throughout itscircumferential length in a substantially solid mass substantiallyradially from said axle to the face supporting said shell, a brake forsaid shell at the one side ofsaid bearing, an actuating means for "saidbrake at the other side of said bearing, and means for connecting saidactuating means and said brake and comprising a pin slidably carried insaid bearing portion and operatively connected at its opposite ends withsaid actuating means and said brake; substantially as described.

6. In a cycle hub, an a'sle. a bearing carried by said axle., aspoke-carrying hub shell carried by said bearing'for rotation about saidaxle, a brake for said shell at the one side of said bearing and havingportions lying at a substantial radial distance beyond said axle andadapted to receive the braking force, an actuating means for said brakeat the other side of said bearing and having portions lying at asubstantial radial distance beyond said axle and adapted to apply thebraking force, and means .for connecting said brake and said actuatingmeans and carried by the bearing at a substantial radial distance beyondsaid axle; substantially as described.

7. In a coaster brake, an axle, a bearing carried by said axle, aspoke-carrying hub shell carried by said bearing for rotation about saidaxle, a brake for said shell at the one side of said bearing and havingportions lying at a substantial radial distance beyond said axle andadapted to receive the braking force, an actuating means for said brakeat the other side of said bearing and having portions lying at asubstantial radial distance beyond said axle and adapted to apply thebraking force, means for connecting said brake and said vactuating meansand carried at a substantial radial distance beyond said axle, a driverfor said shell carried by said axle for rotation independently of saidshell, and means whereby when said driver rotates in the one directionit drives the shell, when said shell overruns the driver said shell isfree to coast, and when said driver is turned in the other direction itoperates the brake actuating means to thereby apply the brake to saidshell; substantially as described.

8. In a cycle hub, an axle, a rad1ally e X tending bearing membercarried by said axle and provided with a socket, a hub shell carried bysaid bearing member for rotation about said axle, a brake for saidshell, a shiftable mechanism adjacent said bearing Inernbe` foractuating sa id brake and which when shifted-in one direction appliessaid brake and when shifted in the other direction releases said brake,means received in said Socket and operatively connected With saidshiftable mechanism to move such mechanism in one direction of itsshifting movement, and means for shifting said mechanism; substantiallyas described.

9. In a cycle hub, anaxle, a radially extending bearing member carriedby said axle and provided with a socket, a hub shell carried by saidbearing member for rotation about said axle, a brake for said shell, ashiftable mechanism adjacent said bearing member for actuating saidbrake and which when shifted in one direction applies said brake andwhen shifted in the other direction releases said brake, means receivedin said socket and operatively connected with said shiftable mechanismto move such mechanism in the direction to release said brake, and meansfor shifting said mechanisni; substantially as described.

In testimony whereof, I hereunto aix my signature, in the presence oftwo witnesses.

VICTOR W. PAG.

Witnesses:

M. B. THORPE, VERNER A. GREENE.

It is hereby certifier! that the residence of the assignee in LettersPatent No. 1,212,669, granted January 16, 1917, uponthe application ofVictor W. Page, of Bristol, Connecticut, for an improvenient in"Coaster-Brakes," was erroneoiisly Written and printed "Hartford,Connecticut, whereas said assignees residence, as

shwn by the records of assignments in this oice, is Bristol,Connecticut; and that the said Letters Patent should be read with thiscorrection therein that the same mayr conform to the record of the casein the Patent Ofce. l

Signed and sealed this 6th day of March, A. D., 1917.

[BILL] F. W. H. CLAY,

ding Commiumer of Potente. Cl. 208-57.

